Design a suitable combined foundation based on the data given.

The calculations and the final design should be presented step by step. The list of deliverables is:

Hand and or Microsoft excel generated calculations with a list of all equations used.

Hand sketch or AutoCAD drawing of final design on scale with dimensions and reinforcement detailing on plan and sections.

Table of bar bending schedule.

Column $3=50**30cm$

$q_{\text{a}\text{l}\text{l}}=150k\frac{N}{m^2}$

$f{c}^{\text{'}}=21$MPa

$f{y}^{\text{'}}=400$MPa

Use $(1\mathrm{.}4$DL$+1\mathrm{.}7$LL$)$ as your load combination.